Zai LK, Listyarini RV. Application of Flipped Classroom to Improve Learning Outcomes in Redox Reaction Lesson. HJKK [Internet]. 2023 Feb. 15 [cited 2025 Sep. 30];11(1):68-73. Available from: https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/5058